The source of most of the the data I use for Antarctic and Arctic Sea Ice Extent is NSIDC.
They are not updating or providing data until Monday because of the flooding in Boulder Colorado.
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sunshine hours 
Russian tanker had to be rescued in the arctic after hitting ice flow
http://barentsobserver.com/en/nature/2013/09/aid-comes-wrecked-northern-sea-route-tanker-13-09
Here is a new “Ice” site I found recently. http://www.iup.uni-bremen.de:8084/ssmis/index.html
For comparison, NIC showed an increase of 100K on Sept. 15, the first rise in 10 days. Total extent is 5.62 M. The packed ice is back up to 4.9 M, the highest since August 26. More indication that the minimum is happening, and a few days earlier than in previous years.
At this point, NIC shows a larger minimum extent in 2013 than either 2012 or 2011, and much more packed ice (>8/10ths).
NSIDC suggests day 255 was the minimum. September 12th.
But the increases are so low a good sized drop would change the minimum.